Method for controlling automobile air conditioner displacement-fixed compressor
A technology of automotive air conditioning and control methods, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of energy waste, evaporator freezing, high viscosity of lubricating oil, etc., and prevent frequent opening and closing , prolong working life and improve performance
Inactive Publication Date: 2014-06-04
FORYOU GENERAL ELECTRONICS
View PDF4 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] When the external temperature is low, the fixed displacement compressor is in the open state, resulting in a waste of energy. In addition, when the external temperature is low, the viscosity of the lubricating oil in the lubrication system of the compressor is high, and the lubrication effect is not good. At this time, the fixed displacement The working of the compressor will greatly shorten the working life of the compressor, which will affect the performance of the air conditioning system
[0004] In addition, when the temperature of the evaporator is too low, turning on the fixed-displacement compressor will easily cause the evaporator to freeze, which will affect the normal operation of the automobile air conditioning system and shorten the service life of the automobile air conditioner.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0028] Such as figure 1 As shown, a control method for a fixed-displacement compressor of an automobile air conditioner determines whether the outside temperature value is greater than the preset outside temperature threshold value A, whether the evaporator temperature value is greater than the evaporator temperature threshold value B, and whether the evaporator temperature value is greater than The target temperature value of the evaporator, whether the air conditioner controller is in the power-on state, whether the blower is in the working state, and whether the power supply voltage is normal are set as the conditions for the compressor to be turned on.
[0029] The specific process is as follows:
[0030] The outside temperature threshold A, the evaporator temperature threshold B and the startup threshold C are preset. The temperature threshold A outside the vehicle is preferably 1° C.-5° C., which is specifically set according to the model of the vehicle. The evaporator...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method for controlling an automobile air conditioner displacement-fixed compressor. The temperature outside an automobile serves as the condition for starting the compressor, the method specifically includes the following steps of presetting a threshold value A of the temperature outside the automobile, detecting the value of the temperature outside the automobile, judging whether the value of the temperature outside the automobile is larger than the preset threshold value A of the temperature outside the automobile, if yes, starting the compressor, and if not, stopping the compressor. According to the method, the phenomenon that energy waste is caused due to the fact that the displacement-fixed compressor is in the started state when the temperature outside the automobile is low is avoided; the phenomenon that the lubricating effect is not good due to the fact that viscosity of lubricating oil in a lubricating system of the compressor is high when the temperature outside the automobile is low is avoided; by setting the conditions, the service life of the compressor can be prolonged, and performance of an air conditioner system is improved.
Description
technical field [0001] The invention relates to the technical field of automobile air conditioners, in particular to a method for controlling a fixed-displacement compressor of an automobile air conditioner. Background technique [0002] In the prior art, fixed displacement compressors and variable displacement compressors are commonly used in automobile air-conditioning compressors. The variable displacement compressor can automatically adjust the power output according to the set temperature. The air conditioning control system does not collect the temperature signal of the m tuyere of the evaporator, but controls the compression ratio of the compressor according to the pressure change signal in the air conditioning pipeline to automatically adjust the m tuyere temperature. During the whole process of refrigeration, the compressor is always working, and the adjustment of the refrigeration intensity is completely controlled by the pressure regulating valve installed inside...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 周积茂陈震吕旭君萧永胜陈永久廖坚强
Owner FORYOU GENERAL ELECTRONICS